Mars 4 billion years ago...

I love the I love Fu**ing science on Facebook, they always have the coolest posts. :D
 
It's just a theory, not a fact. I don't believe that's what it looked like 4 billions yrs ago.
 
It says Mars hasn't had a magnetic field in over 3 billion years.. As far as I know, that statement is wrong. Mars has a magnetic field, but it is weak, but enough to protect human habitation on the surface.

I read that from SpaceX I think it was, because they were talking about sending Humans to live on Mars and solar radiation was a primary concern. I may be wrong as that kind of information isn't a specialty field of mine.
 
CrazyPaul said:
It's just a theory, not a fact. I don't believe that's what it looked like 4 billions yrs ago.
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i disagree, they're scientists and specialists in these fields, they would know what they are talking about...stuff like chemical tables and how it changes and relates in the galaxies at various stages...
 
Grummer said:
i disagree, they're scientists and specialists in these fields, they would know what they are talking about...stuff like chemical tables and how it changes and relates in the galaxies at various stages...
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they don't know for sure. they're just speculating. they don't even know what happened to dinosaurs.
 
Saavik said:
It says Mars hasn't had a magnetic field in over 3 billion years.. As far as I know, that statement is wrong. Mars has a magnetic field, but it is weak, but enough to protect human habitation on the surface.

I read that from SpaceX I think it was, because they were talking about sending Humans to live on Mars and solar radiation was a primary concern. I may be wrong as that kind of information isn't a specialty field of mine.
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hmm I don't think that's correct. Mars has nearly no magnetic field.... only patches. that's why it's a dead planet.

It's not enough to protect human habitation. its atmosphere is nearly nonexistent. The structure materials will have to be able to withstand the intense UV radiation long-term.
 
Jiro said:
they don't know for sure. they're just speculating. they don't even know what happened to dinosaurs.
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yes, i realise that, but they are specifically interested in putting altogether 'what we already know' and make hypothesis (if you will) to try understand something that is barely accessible to 'test' and we still don't know for sure what is really a magnetic field, it may even rely on some chemical composition, like for instance on earth its ferrite based (iron) over there it might (or have been ferrite then nitrogen who knows??(ok im making this up), or heck maybe magnesium instead or whatever i dunno. what im 'saying ' is magnetic phenomena may be only for earth...

its easy for 'us' whos not professional spectaculars outside NASA to assume we know 'about the same as they do' ...that - to me- is sheer disrespect to scientists who dedicated to fiddle with something really hard to grasp because they dont have the luxury of a lab testing facility to play with something that is literally millions of miles away from us, hell, even the moon is 250,000 miles away(give/take due to its eccentric orbital paths)...
 
Grummer said:
yes, i realise that, but they are specifically interested in putting altogether 'what we already know' and make hypothesis (if you will) to try understand something that is barely accessible to 'test' and we still don't know for sure what is really a magnetic field, it may even rely on some chemical composition, like for instance on earth its ferrite based (iron) over there it might (or have been ferrite then nitrogen who knows??(ok im making this up), or heck maybe magnesium instead or whatever i dunno. what im 'saying ' is magnetic phenomena may be only for earth...

its easy for 'us' whos not professional spectaculars outside NASA to assume we know 'about the same as they do' ...that - to me- is sheer disrespect to scientists who dedicated to fiddle with something really hard to grasp because they dont have the luxury of a lab testing facility to play with something that is literally millions of miles away from us, hell, even the moon is 250,000 miles away(give/take due to its eccentric orbital paths)...
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disrespect? no not at all. it's a clear fact that scientists are as clueless as we are. we all simply do not know.

I'm aware that scientists spend their lives studying it and therefore they're super-genius compared to us.... but they are only genius on Earth.... and when it comes to another planet or deep space... they know nothing. just theories and speculations.... not a fact.

nobody knows. even stephen hawking doesn't know. the only way to know is to build an USS Enterprise NCC-1701 and go out to explore! :lol:

I would prefer that NASA would reallocate its brainpower and manpower on building starship rather than building satellites for deep space exploration.
 
theres money issues there too for the starship, also ethics , and unforeseen consequences on people 'in society' on Earth...like 'paid to explore' to 'win scholarship' to pay for tourist rights, etc etc, ...it would be far more complicated than just a mere build of the ship, recruitment isn't just a simple matter of hopping on the space, for starters, those signing up have to realise there's no going back home...and...to ensure those signed up are going to be required to be psychologically clean and whatnot to avoid costly disasters ...like terrorism in space is the last thing NASA or whoever would build it...wants
 
Grummer said:
theres money issues there too for the starship, also ethics , and unforeseen consequences on people 'in society' on Earth...like 'paid to explore' to 'win scholarship' to pay for tourist rights, etc etc, ...it would be far more complicated than just a mere build of the ship, recruitment isn't just a simple matter of hopping on the space, for starters, those signing up have to realise there's no going back home...and...to ensure those signed up are going to be required to be psychologically clean and whatnot to avoid costly disasters ...like terrorism in space is the last thing NASA or whoever would build it...wants
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what? you're going way too far ahead. one step at a time.

there are thousands and thousands of people who do something that millions of people don't want to.... staying overseas for long time like oil riggers, soldiers, scientists in ISS and Antarctic, etc.
 
Jiro said:
what? you're going way too far ahead. one step at a time.

there are thousands and thousands of people who do something that millions of people don't want to.... staying overseas for long time like oil riggers, soldiers, scientists in ISS and Antarctic, etc.
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actually i think you are thinking too far ahead...
and indeed there are people working far away from home for prolonged periods but space travel is not like Earth where you can get fired, go back home, or have an annual leave, or simply quit and go home, find another occupation, intergalactic space travel is a whole different ball game, also with that, its requires an entirely different level of commitment not just from 'working people' but from backers, and actual scientific expedition is also being re-defined, as it is on a whole new level, Ok granted we had Star Trek on TV for probably the 40 odd years now, but that is fictional entertainment with a large amount of suspension of belief. consider how we might size up to aliens' vast experience and knowledge of deep space travel, we might be liken to comparable as to adults here in capacity of naivety, as would fairy tales were for little children, full of fancy and so we are unbeknownst about the reality of schemes of things we do not yet know, it is undoubtedly far far more dangerous than mere deep sea travel...

additionally, some people believes human race isn't ready due to their evolutionary aspect in societal terms hasn't quite matured, and I agree we aren't mentally, principally geared for yet, maybe Mars yes but hurry up on that...but no further...mainly because the idea of sheer commitment to be 'gone forever' isn't yet available for consideration, studies for asteroids behaviors, pathways and such aren't at a comprehensive level yet, to ascertain safe travel into the deep space...cost also.
 
4 people will be at Mars in 2023. If there is enough funded. Once, all people, 2 men and 2 women, are there, they shall never return to Earth. They will be surely busy to have 4some... or not.
 
Someday, Mars will be our second home.

But have you played Kerbal Space Program? Getting stuff to the moon is damn hard, never mind to another body not conveniently in orbit around us.

In the opening chapter of 2001: A Space Odyssey (the book), it describes how the aliens ignored 'dying Mars' millions of years ago and instead picked Earth as the planet to watch over and protect... and planted the monolith.

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(artist's conception, may not be accurate :p )

The monolith planted just the subtlest of hints, that the strength of blows could be magnified by using another object as a club. From that, humanity could hunt, defend itself from wildlife, not spend the entirety of the day scrounging for berries, and become masters of their world.
 
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